Door attachment



'11. F. BURNER. DOOR ATTACHMENT.

APPLICATION FILED MAY 17, 1919.

1,369,270, Patented Feb. 22,1921.

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APPLICATION FILED MAY 17, I9l9- 1,369,270. Patented Feb. 22,1921.

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URBAN r. BURNER, or MILWAUKEE, WIscoNsIN. I

J A DOOR ATTACHMENT.

Specification of Letters Patent. Patented Feb. 22 1921 Application filedMay 17, 1919. Serial No. 297,922.

To all whom it may concern:

Be it known that I, URBAN F. DURNER, a citizen of the UnitedStates,residing.at Milwaukee, in the county of Milwaukee and State ofWVisconsin, have invented certain new and useful Improvements in DoorAttachments, of which the'following is a description.

My invention belongs to that general class of devices known as doors,and relates more particularly to an attachment for use on doors, wherebyone at one side of a closed door can observe and converse with one atthe other side of the door without first requiring the opening of thedoor. The invention has among its objects the production of a device ofthe kind described that is simple,.convenient, durable, ornamentalefficient and satisfactory for use wherever found applicable. It hasespecially as an object the production of a device which.

when applied to a door will afford security and safety, as well as beingconvenient and preventing annoyance. Many other objects and advantagesof the construction herein shown and described will be obvious to thoseskilled in the art from the description here after given. To this end myinvention consists in the novel construction, arrangement andcombination of parts herein shown and de scribed, and more particularlypointed out in the claims. p

In the drawings, wherein like reference characters indicate like orcorresponding parts, Figure 1 is a perspective view of a of a doorequipped with .my device; Fig. 2 is a view in elevation of a of the doorand my device;

Fig. 3 is a sectional vlew taken substantially on line 33 of Fig. 2;

4 is a sectional view taken substantially on line 4-41: of Fig. 2;

Fig. 5 is'a sectional view'taken substantially on line 55 of Fig. 4;;

Fig. 6 is a sectional view taken substantially on line 6-6 ofFig. 2;

Fig. 7 is a sectional view similar to Fig. 4: illustrating a slightlymodified form of device; I V

Fig. 8 is a view illustrating a modified form of plate and sleeve; and

Fig. 9 is a sectional view illustrating a modified form of hingeconstruction.

" Referring to the drawings, 1 represents portion portion 7 any type ofdoor, whether in dwelling, apartment, office, hotel, institution, or thelike,

and regardless of whether an outer door or an innerdoo'r. I have notconsidered it necessary to 1llustrate the details of the doorconstruction proper, as this varies in differ,- ent types of doors, anddepends upon the use to-which the door is tobe put as well as thematerials out of which it is made. It is sufficient, however, to saythat my device is applicable for any door regardless of the use'towhichit is to be put orits construction.

The device in its broadest sense consists of an attachment which may beapplied to the door, the door being providedwith a small opening of thepreferred size and shape at a desired point. When my device is closed,all the privacy and security of the usual door is obtained, butobservation may be made and conversationcarried on to the satisfactionof the one at the inner side of the door with perfect security and asconveniently as if the door had been opened. The preferred constructionconsists of an inner frame or the like arranged at the inner side of thedoor, the same carrying a closing member or what may be'termed a smallsight door of opaque material, which may be opened to permit observationand 'conversation. I also employ a slide or second door member arrangedto permit observation, and which may be raised to facilitateconversation, or the passing of a card, telegram, receipt or money orthe like through to the one on the inner side or vice versa. Referringto the drawings, 2-3 represent a frame which may be constructed asdesired, as shown, in two parts or plates, the same being securedinplace by screws 4 or their equivalents for the purpose. The plates maybe cast, stamped, cut, or otherwise constructed.

One of the plates, as shown,'3 is provided with an opening 5 of thedesired size and shape, which may benormally closed by the sightdoor'member 6, whichis arranged to completely close the opening.

In the construction shown, the si ht door 6' is formed with extendingparts i which serve as hinge members and extend into the grooves 7 (seeFig. 6), these being normally maintained-in place by the resilientstraps 8 or their equivalents, which also act to shut and maintain thesight door 6 closed. The other plate or frame part 2 is preferably cutout at 9.as indicated in Fig. 5,3 but provided with extending parts orstops 10. Ar-

ranged in the frame part or plate 2 is a slide frame 11, whichispreferably provided with a transparent pane or panel 12 of glass orequivalent material, which may if desired be secured in place by themember 13 or. its equivalent for the purpose. The slide frame part ll isprovided with the extending lugs ,14 arranged to engage with the stops10 and vided with a pin 16, which may be split at the end as shown, andis of alength to extend into the opening 17 in the slide 11. As shown,the pin 16 is carried by a part 18 secured to the door, and extendsthrough the frame part 3 see Fig. 4), 19 being a knob for opening thedoor and at the same time withdrawing the locking pin 16, so that theslide 11 may be raised if desired. The pin 16 thus locks slide 11closed, and as a result the inner door 6cannot bemanipulated and openedfrom the exterior side of the door 1. At the outer side of the door Iprovide a plate or frame part 20, which may be secured in place byscrews 21 or their equivalent for the purpose. Formed separately orintegrally with one of the plates, as shown, integrally with plate 20,is a sleeve part 22 of a size to fit the opening out in the door.thereby improving the appearance of the device as well as making theopening the exact size desired. I have shown a sleeve part 22, which maybe employed instead of extending part 22 entirely through the opening.The sleeve part 22" may be the desired size for the particular door, butif too large may be out down to fit or adjusted.

I have shown a plate 2, the purpose of which is to'prevent the slidingframe 11 from marring the door, and it also causes it toslide easier.tral.

A slightly nodified construction is shown Its use, however,1is notessenin Fig. 7 in which 23 represents the'doorund24 the plate on theexterior of the same,

which in this case is also formed with a sleeve 25. In this constructionthe sight door 26 corresponding to the door 6 is shown on the exteriorside of the door 23, the same being pivotally hinged or supported at 27in any suitable manner. A latch 28 arranged to engage lug 29 orequivalent, means maybe provided forlocking the small door shut, and Ihave shown the spring 30 tending to normally maintain the latch in looking position. In this case 31 represents a frame at the inner side ofthe dobr, 32 the slide and 33 the transparent pane. Fig. 8 is intendedto illustrate how the plates at the inner and outer sides of the doormay be secured together by common means, and in such a manner that aplate at the exterior side cannot be easily removed. Referring to thisfigure, 34 represents the outer plate and 35 the sleeve, while 36represents screws or bolts which may take the place of the screws 4previously described, but which extend through and engage thethreadedlugs 37 or the equivalent, therebyisecuring the two provided with theglass panel 42, and 44 a small sight door corresponding with door 6. Inthis case door. 44 is secured to frame 41 by a pin 45, 46 being a coilspring so arranged as to tend to throw the door 44 shut and'maintain itin its closed position.

Vi hile it will be obvious that my attach- I ment may be made in varioussizes, I prefer 'to make the same substantially of the size shown, whichis amply sufficient for the purpose of conversation or observation, orfor the passing through of a card or small article, and still of suchsizes that one at the outside cannot extend a hand through the same. Byproviding the doors with shutters, greater privacy is obtained in theinterior, and it is not possible for one to reach in by means ofinstruments and manipulate the door lock or knob. When one at theoutside approaches and by means of the doorbell,

telephone or knocking, or otherwise attracts the attentionof the oneat-the inner side of the door, the one on the inner side may open thesight door 6 or its equivalent and observe who is without. If desiredthey may con verse through the glass, but ordinarily it is preferred toraise the slide, especiallyif the one from the outside desires to pass acard to the one within or vice versa. There is no chance for the onewithout entering until the door is opened. Without my device it would benecessary, in order to see the one without, to open the door, in whichcase the one from without might place a foot, cane or something else inthe crack of the door, thereby preventing the occupant or one at theinner side from closing the door. This is even true with chains orbolts, as the door can be prevented from being fully closed by the oneat the outer side. The device is therefore particularly desirable inresidences, apartment buildings and the like. It is also desirable forthe same reasons in hotels, each room door being equipped with one ofthe devices. The same is also convenient as the one wlthin can observewho is without and converse even 1f not entirely clothed or otherwisenot presentable. The one from without likewise is not able to make anyobservation of the interior of the room, as the sight door 6 may be onlypartially opened a sufi'icient distance to satisfy the one at the innerside. The device is especially attractive as well as convenient andsafe. In apartment buildings, while they are generally equipped withphones or speaking tubes, and peddlers, tramps and others are supposedto be kept out of the interior halls by outer doors, these peoplefrequently gain admittance to the interior halls, in which case the onewithin the apartment having doors equipped with my devices can alwaysfirst observe who is outside before opening the door, as well asconverse if it is not desired to open the door.

Having thus described my invention, it is" obvious that variousimmaterial modifications may be made in the same without departing fromthe spirit of my invention,

hence I do not wish to be understood as limiting myself to the exactform, construction, arrangement and combination of parts herein shownand described, or uses mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. In a door attachment of the kind de scribed and in combination,plates arranged to be placed on the exterior and interior of the door, atwo part tubular sleeve arranged between said plates, a sight doormember pivotally carried by one plate for normally closing the openingthrough said sleeve, and a transparent shutter slidably arranged betweensaid plates adjacent the sight door, and means carried by the sight doorfor looking said transparent shutter in position.

2. A door attachment of the character described,- comprising" supportingmeans located at one side of the door, a sight door movably attached tosaid supporting means,

a transparentshutter located adjacent the sight door and adapted to bemaintained in:

position for a movement, said sight door and shutter being capable ofindependent relative movements, and means carried by the by the sightdoor and cooperating with the shutter for maintaining the closedposition.

4. A door provided with an opening therethrough anoadjustable tubularsleeve ar ranged in and closely fitting said opening, plates arranged onthe inner and outer sides of the door at the'ends of said sleeve, andprovided with openings to permit observashutter in a tion through thedoor, a sight-door arranged. at the opening through the inner plate, re-

silient means, for retaining said sight door closed, a transparentshutter slidably arsupporting means i ranged between said sight door andthe sleeve, and m'eanscarried .by said sight door for locking saidshutter against movement when the sight door is closed.

In testimony whereof, I have hereunto signed my name in the presence f tbscribing witnesses. I

v 'URBAN Witnesses: ROY W. HILL, CHARLES I. COBB.

BURNER.

